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EmbeddedPkg/DwEmmcDxe: limit max clock for platform

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Some boards may have max clock limitation. Add a Pcd to notify
driver.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jun Nie <jun.nie@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
This commit is contained in:
Jun Nie
2017-07-05 16:27:07 +08:00
committed by Leif Lindholm
parent d4f6c35c84
commit d4102f68dc
3 changed files with 6 additions and 0 deletions
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EmbeddedPkg/EmbeddedPkg.dec
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@@ -167,6 +167,7 @@
# DwEmmc Driver PCDs
gEmbeddedTokenSpaceGuid.PcdDwEmmcDxeBaseAddress|0x0|UINT32|0x00000035
gEmbeddedTokenSpaceGuid.PcdDwEmmcDxeClockFrequencyInHz|0x0|UINT32|0x00000036
gEmbeddedTokenSpaceGuid.PcdDwEmmcDxeMaxClockFreqInHz|0x0|UINT32|0x00000037
#
# Android FastBoot